/* ==================== DCM PAGE STYLES ==================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

/* Main Header - Matches Transcend Tools pattern */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    margin-bottom: 0;
    border-bottom: 2px solid var(--border-color);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-section a {
    display: flex;
    align-items: center;
}

.logo {
    height: 32px;
    width: auto;
}

.logo-divider {
    width: 1px;
    height: 24px;
    background: var(--border-color);
}

.logo-subtitle {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
}

.logo-subtitle:hover {
    color: var(--transcend-blue);
}

/* DCM Sub-Navigation */
.dcm-subnav {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 0;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(to bottom, var(--bg-primary) 0%, transparent 100%);
}

.dcm-subnav-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-right: 8px;
}

.dcm-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.dcm-nav-link:hover {
    color: var(--transcend-blue);
    background: var(--transcend-light);
}

.dcm-nav-link.active {
    color: var(--transcend-blue);
    background: var(--transcend-light);
    border-color: var(--transcend-blue);
    font-weight: 600;
}

.dcm-nav-link.admin-only {
    color: #059669;
}

.dcm-nav-link.admin-only:hover {
    background: #d1fae5;
}

.dcm-nav-icon {
    font-size: 1rem;
}

.btn-primary:hover {
    background: var(--transcend-blue-dark);
}

.btn-secondary {
    background: white;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

/* Auth States */
.loading-state, .auth-required, .dcm-access-denied {
    text-align: center;
    padding: 60px 20px;
    background: white;
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--transcend-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.dcm-access-denied {
    background: var(--red-light);
    border: 1px solid var(--danger-red);
}

.dcm-access-denied h2 {
    color: var(--danger-red);
}

.hidden {
    display: none !important;
}

/* Hero */
.hero {
    text-align: center;
    padding: 40px 24px;
    border-radius: var(--radius-lg);
    color: white;
    margin-bottom: 32px;
    background: linear-gradient(135deg, var(--transcend-blue) 0%, var(--transcend-blue-dark) 100%);
}

.hero h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.hero p {
    font-size: 1rem;
    opacity: 0.9;
}

.data-meta {
    margin-top: 16px;
    font-size: 0.85rem;
    opacity: 0.8;
}

.tool-brief {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin: -8px 0 24px;
}

.tool-brief > div {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 14px;
    min-width: 0;
}

.brief-label {
    display: block;
    color: var(--transcend-blue);
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.7px;
    margin-bottom: 5px;
    text-transform: uppercase;
}

.tool-brief strong {
    display: block;
    font-size: 0.82rem;
    line-height: 1.35;
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
    overflow: hidden;
}

.card-header {
    font-size: 1rem;
    font-weight: 600;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-body {
    padding: 20px;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

@media (max-width: 1200px) {
    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    background: white;
    border-radius: var(--radius-md);
    padding: 20px;
    border: 1px solid var(--border-color);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--transcend-blue);
}

.stat-sub {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Rankings Table */
.rankings-table {
    width: 100%;
    border-collapse: collapse;
}

.rankings-table th,
.rankings-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.rankings-table th {
    background: var(--bg-primary);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.rankings-table tbody tr:hover {
    background: var(--transcend-light);
}

.tier-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.tier-a { background: #d1fae5; color: #047857; }
.tier-b { background: #dbeafe; color: #1d4ed8; }
.tier-c { background: #fef3c7; color: #b45309; }
.tier-d { background: #fee2e2; color: #b91c1c; }

.rank-num {
    font-weight: 700;
    color: var(--transcend-blue);
}

.cut-line {
    background: linear-gradient(90deg, transparent, #ef4444 20%, #ef4444 80%, transparent);
    height: 2px;
    position: relative;
}

.cut-line-row td {
    padding: 0;
    height: 24px;
    position: relative;
}

.cut-line-label {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 2px 12px;
    font-size: 0.7rem;
    font-weight: 600;
    color: #ef4444;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

@media (max-width: 900px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

.chart-container {
    height: 350px;
    position: relative;
}

/* Search/Filter */
.filter-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.filter-bar input, .filter-bar select {
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    flex: 1;
}

.filter-bar input:focus, .filter-bar select:focus {
    outline: none;
    border-color: var(--transcend-blue);
}

.ranking-filter {
    flex: 0 0 300px;
    margin: 0;
}

.table-card-body {
    overflow-x: auto;
    padding: 0;
}

.table-empty {
    padding: 40px;
    text-align: center;
}

.table-empty.error {
    color: var(--danger-red);
}

.stat-top-theme {
    font-size: 1.2rem;
}

/* Footer */
.site-footer {
    text-align: center;
    padding: 32px 20px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    border-top: 1px solid var(--border-color);
    margin-top: 40px;
}

.site-footer a {
    color: var(--transcend-blue);
    text-decoration: none;
}

.signin-secondary,
.footer-note,
.comments-empty-help {
    margin-top: 8px;
}

@media (max-width: 768px) {
    .tool-brief {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ranking-filter {
        flex: 1 1 100%;
    }

    .dcm-subnav {
        align-items: stretch;
        flex-wrap: wrap;
    }

    .dcm-subnav-label {
        width: 100%;
    }

    .dcm-nav-link {
        flex: 1 1 calc(33.333% - 8px);
        justify-content: center;
        min-width: 0;
    }
}

@media (max-width: 480px) {
    .tool-brief {
        grid-template-columns: 1fr;
    }
}